Hi, i'm getting the following error:

root@pchans man # emerge app-emulation/vmware-workstation
Calculating dependencies ...done!
>>> emerge (1 of 1) app-emulation/vmware-workstation-4.5.2.8848-r1 to /
>>> md5 src_uri ;-) VMware-workstation-4.5.2-8848.tar.gz
>>> md5 src_uri ;-) vmware-any-any-update83.tar.gz
>>> md5 src_uri ;-) vmware.png
>>> Unpacking source...
*
* Could not determine your kernel version.
* Make sure that you have /usr/src/linux symlink.
* And that said kernel has been configured.
* You can also simply run the following command
* in the kernel referenced by /usr/src/linux:
* make include/linux/version.h
*

I'm using Gentoo Stage3. (installed with vidalinux)
Please help me with this?

well start by reading that error message.

is there a symlink from /usr/src/linux to your kernel source?

error messages are there for a reason.

There is nothing inside /usr/src